Japan Flora: Rhizomes slender, the conical pseudobulbs about 10 mm. long, interspersed while young with sheathing scales; leaves rather thick, deep green, oblong-lanceolate, gradually acute, glabrous, conspicuously nerved, the petioles 2-3 cm. long; scapes erect, slender, 20-30 cm. long, with 1 or 2 sheaths at base; racemes about 10 cm. long, loosely flowered, the bracts linear-lanceolate, 4-5 mm. long, acuminate; flowers brownish white; sepals yellowish brown, obliquely spreading, linear-lanceolate, 12-15 mm. long, about 2 mm, wide, acute; petals white, ascending-spreading, similar to and contiguous with the dorsal sepal; lip 8-10 mm. long, white, tinged rose-purple, cuneate, with a short chin at base, 3-lobed, the lateral lobes ascending, short, obtuse, the dorsal lobe transversely oblong, narrowed at base, truncate and entire at apex, spurless; ovary pedicelled. May. Woods;

Honshu (Izu Shichito Isl.), Kyushu; rather rare. Ryukyus.